Busong maps the journey of Angkarang (Rodrigo Santikan), who carries his sister Punay (Alessandra de Rossi) in on ornate hammock to find a cure for the running sores that cover her body. On their way, different people help her, though they themselves are on some kind of quest. Their search leads them to meet several strangers - the widow (Bonivie Budao), of a logger, a fisherman (Dax Alejandro), and Aris (Clifford Banagale), who comes from the capital in search of his Palawan roots, and fatefully becomes Punay’s healer.